Fuse-adjusting key.



P. ZIEGENFUSS.

FUSE ADJUSTING KEY.

APPLIGATION FILED OCT. 7, 1907'.

1,005,762. Patented 001. 10, 1911.

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mined.1oF.iEssEN+o1\T.r n-EoHR, L GERMANY, ASSI'GNOR' ro. FRIED.

of fuse adjusting ke s which is provided 1 @5456 athe pregent inyentionthebolt is soara have invented certain new and useful 1melew' th t h adjusting ose of f FUSE-ADJII STTTN G KEY;

Be it knownlthat I; FRiEIQRICPT jzmersr ss, I a" sub ect er the Emperor. of Ge many; andresldent of Essenon the Ruhr,'-"Germany;1

provemen'ts'i in Fuse-Adjusting Keys, i of which the followin'gfis a spec fication? he? present lnventi'on 1 relates to the type;

with} '-'a""securing bolt which is releasable by 1 hand and 1 which in'its' securing position p re vents the adjusting key-being i lifted off the fuse, "111 the fuse adj u'sting key according ranged" on the key' and enters into engagenie'nt with the fuse in such "a manner that wheflthekey' is rotated toiadjustthe fuse the bolt is able ofipartaking of the rota- By a "bolt which in" its securing posi ti'oii prevents the. adj usti g key being lifted ofl'the fuse is meant a bolt which while ena; aging? the ruse; {prevents relative 1 move longi'tudinal of the fuse and o sequently ist be released adjtistiirg dev c the aceo'mpan'ying 1 wsaseet enth tczugh eembocl the iiiveii'tion; by ivay ample; Fig. 2 shows a plan view of Fig:-1-, partly in;setion; Fig. 3 shows a side viewyfpartly in section, of a burning time fusey-andlFig. 4c is a plan view of Fig. 3, partly in secti o w .ifihexann lan-hodysh .,-th adjusting 1 is provided rawing Fig is held from axial displacement therein. The ring B can be adjusted relatively to the body A through the medium of a worm G which is j ournaled in the body A and which meshes with the toothed periphery b of the ring. On the upper surface of the ring B is secured a scale carrier 6 which has its scale 72 visible through a window a (Fig. 2) which is provided in the body A and has a mark a? at its edge. In thering B is swingingly arranged a spring-pressed latch b for which a notch d is provided in the fuse base D. The body A is provided with a stud a which is diametrically opposite to the arm A and which fits in a notch e with an arm A and contains ring B which can rotate in the body A-but W provided inthe rotatable composition ring Ej-of the fuse. .Thelat'ch b and the corresponding notch cl and'als o the stud a"- and the'correspon'ding notch e are formed nFsuch'a-manner that the latch 19* and the studrztcanpass out of engagementwith the 'corres'p ondin gnotch' d and e" when the adjusting keyis withdrawn fromthe fuse. 1The arr ngements so far described are od'.-"'."

'In' the body A a bolt F is mounteddiametrically opposite tothe stud 64*. The bolt Fisheld fromrotation and is arranged in'f'such a manner. that it can move in a direction which is radial to the-axis of the body A. A spring f tends to hold the bolt in the position in which-its inner end f projects beyond the inner" periphery of the p i e i n fii B tentf Patented Oct. 10, 1911.

body 'Forthe end f of the bolt F a notch 6 is provided in the rotatable com- P i ing hefuse'. The notch e ls'lodated the same angular distance from the notch eas the bolt F is from the stud 24*, and when" thestud"a engages in the the y sametimeflengage in "the notch eQ The formed in such' a mannerthat the bolt F cannot be brought oi t 'offengagement{'with 5-3 the-key from the fuse.- ""The*onter end o'f'the bolt F, on whichi's '--'screwed a head f? notche the bolt cany-therefore, at

hawii g: -two trunnions f fgproj ects into a abell crank lever G G arranged in the IQQQS 4? :Q the arm 3A! pan d th r-arrange:a:v

ment is selected in sucha manner that the trunn-ions' f project into the path of the arm G and that the bolt F, by a turning of the bell crank lever G G in the direction of the arrow 00 (Fig. 1) can be moved so far outwardly that its end f does not any longer project beyond the inner periphery of the body A. The arm G of the bell crank lever G G has its outer end projecting into the path of a bolt H which is axially movable in a handle a which is rigidly secured to the arm A. The bolt H is provided with a collar h over which is fitted a screw-cap a which is screwed on the handle 0!]. On the cap a is slidably arranged a bell-shaped press-piece 71. which is rigidly secured to that end of the bolt H which projects outside of the cap a A spiral spring J tends to hold the bolt H and the press-piece if in the position shown in the drawing.

After the adjusting key has been adjusted by means of the worm O, the key is inserted on the fuse in such a position that the stud a comes into engagement with the notch 6. While this takes place the bolt F is first forced back in its bearing and is subsequently brought into engagement with the notch e by the spring The adjusting key is then secured against being lifted off the fuse and it is immaterial whether the force acting to lift off the adjusting key tends to effect a displacement of the key in the direction of the axis of the projectile or whether the force tends to place the key on edge relatively to the fuse. After the key has been placed on the fuse the key is, by means of the handle a [1 turned in the direction of the arrow 1 (Fig. 2) until the latch 5 which while the key was being placed on the fuse was forced entirely back in the body A, enters the notch d in the fuse base D. The desired adjustment has then been imparted to the fuse. The bell shaped press piece 72, is then pressed downwardly until the collar h of the bolt H abuts against the handle M. This causes the bolt F to pass out of engagement with the notch e and the adjusting key can then be lifted off the fuse.

The improved securing means forpreventing the key being lifted off the fuse is simpler than the known devices of the same type. Furthermore it is directly applicable to the type of adjusting keys which is shown in the drawing and which is of very simple and compact construction.

Having thus described the. invention, what is claimed as new and desired to secure by Letters Patent is 1. A fuse adjusting key having setting members provided with means for coupling them to the fixed and movable parts respectively of the fuse, and a manually releasable bolt constructed to engage and cooperate with the fuse and hold the key against displacement in the direction of the axis of the fuse.

2. A fuse adjusting key having setting members provided with means for coupling them to the fixed and movableparts respectively of the fuse, a bolt movably mounted on one of said members in position to engage a part of the fuse in the direction to resist removal of the key from the fuse, and manually actuated means adapted to move said bolt, relatively to the key, out of engagement with the fuse.

l 3. A fuse adjusting key comprising an operating handle and two relatively rotatable adjusting members having means for cou pling them to the respective members of the fuse, a bolt mounted on one of said adjusting members in position to engage a part of the fuse in the direction to resist removal of the key from the fuse, and means for manually actuating the bolt to effect the release of the key from the fuse, said actuating means being mounted on saidhandle whereby the handle and the actuating means may be manipulated by one hand of the operator.

4. In a fuse adjusting key adapted to be applied to the fuse by an axial movement relatively to the fuse and comprising two relatively rotatable adjusting members hav-.

ing means for coupling them to the respec tive members of the fuse, a bolt mounted on one of said adjusting members and adapted to be coupled to the adjustable fuse element and resist removal of the key from the fuse, and manually operable means adapted vto move said bolt out of engagement with the adjustable fuse element.

The foregoing specification signed at Dusseldorf, Germany, this 31st day of July,

FRIEDRICH ZIEGENFUSS. In presence of-V ALFRED PoHLM-nYER, M. ENGELS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner pf latents, I

Washington, D. 0. 

